Tire-rim tool.



A. L. MGMURTRY;

TIRE RIM TooL'. I APPLICATION FILED SEPT. 28 1912.

Patented Apr. 8, 1913.

ATIOR/VEK UNITED STATES PATENT OFFICE.

ALDEN L. McMUR'IRY, OF SOUND BEACH, CONNECTICUT.

TIRE-RIM TOOL.

Application filed September 28, 1912. Serial No. 722,845.

To all whom it may concern:

Be it known that I, ALDEN L. MCMURTRY, a citizen of the United States, and a resident of Sound Beach, Connecticut, have in vented certain new and useful Improvements in Tire-Rim Tools, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

My invention relates to a tool for joining or disjoining removable rims for vehicle wheels and particularly such rims as comprise a pair of similar annular parts which are connected by a plurality of bayonet joints.

The object of my invention is to provide a simple and durable tool or device which may be readily attached to a pair of rim members, of the character above specified, for assisting in either ccnnectjng or disconnecting the. rim membofs.

In the drawings, Figure 1 is a top plan view of a section of a vehicle rim to which the tool of my invention is applied. Fig. 2 is a side elevation, with a small portion in cross section, of the parts shown in Fig. 1,

and Fig. 3 is a sectional elevation on the line 3-3 of Fig. 1.

Like characters of reference designate corresponding parts in all the figures.

Referring to the drawings, the vehicle wheel rim here shown is of a well known construction such as is largely used for antomobiles and other vehicles and comprises two annular members 10 and 11 which are respectively providedv with teeth or projections 12 and 13 which cooperate to form a plurality of bayonet joints. tions 13 have lateral extensions 14 and pro duce a series of partially closed orL-shapcd notches 15. The edge of the rim member 11 which includes the projections 13 is slightly offset in order to fit over the adjacent edge of the member 10. This is shown clearly in Fig.3. The projections 12 extend radially inward from the edge of the member 10, are uniformly spaced and correspond in number and location to the notches 15 of the'mcmber 11, with which they are adapted to cooperate in locking the two rim members together.

The arrangement of parts is such that in assembling the rim members they are pressed together transversely until the proections 12 and the slots 15 occupy the rela- Specifleation of Letters intent.

.The shank ofjtlny bolt. is bent at so parallel to the rim members. The vprojec- Patented Apr. 8, 1913.

tive positions indicated in Fig. 1. The rim members are then moved circumferentially relative to each other until the projections 12 are forced under the overhanging extensions lei: of the p"ojections 13.

lla'ch of the rim membdrs is-usually provided with an annular hook projection which grips the wheel ti 2 in a well known manner. j

The reverse of the above described operation is of course necessary in removing the rim.

The bayonet joints between the rim members have hitherto been a source of considera-ble trouble by reason of theftccunmlation of dirt and rust which cause( conside'able ditliculty in producing the Itecessary circumferential movement of the\ members to disjoint them but according to my presentinvention, I have provided a simple tool which can be readily applied to the rim members for facilitating either t 1e disjointinc; or the uniting of the rim members. This tool comprises a clamp having a hook projm-tion 26 which is ada ted to be hooked onto the annular project on 9.0 of the rim member 10 and a swivel bolt 40 and a second-clamp 30 which has a hoolted projection 31 to engage the annular p1\ojection 2 0 of the rim member 11.

(lamp 525 is provided with an offset body projection 35 having a suitable opening 36 through which the swivel bolt 40 e. tends.

stantially right angles close to the proje tion- 35 and extends when in use subslant'ally -The clamp 30 is provided with a bifurvcated section 42 which provides a notch\0r socket 43 to receive the outer end of the b it 40. This end of the bolt is screw thread d -to receive a nut 44-and a helical spring 45 ii coiled about the bolt between the pro ectioi 12 of the clamp 30 and the nut 44-, vashers 46 and 47, being interposed at the respective .1 9

an assembled rim constructed as herein dcscribed and shown in the drawings, the

clamp 25 isfirst hooked on to one of the members, the nut 44 is turned back to a point near the end of the bolt 40, the clamp 30 is hooked onto the other rim member with the shank of the bolt extendingthrough the notch or socket 43. The clamps 25 and 30 ll rim members and the nut a l is finally turned to compress the spring 45.. This action tends to cant the clamps 25 and 30 so that they securely grip the rim members and tend to move them circumferentially, in such a direction as to bring the clamps closer together.

The cl: up 30 will be placed on its rim member 011 the one side or on the other side of the clamp 25, dependept upon whether it is desired tokjoin or dis oin the rim membersx As shown in Figs land 2 of the drawi11gsr,the spring 45 is under compression and is tending to disjoint themembers l0 and 11. In order tohnove the members in the opposite direction, and to join them the clamp 80 will be moved to theposition shown in broken lines in Fig. 2.

The spring 45 is not intended to be suiticiently powerful to forcibly move the rim members circumferentially in either direction, especially if the joints are clogged with dirt, until the members are tapped with a hammer. In fact it would be diflicultto provide a sufficient force, applied-locally to the rim members,'to disjoin them with out tapping because they are more or less resilient and tend to expand and so loosen a few instead of all of the .bayonet joints.

It is not myintention to limit my invention to the structural details shown and described nor to any specific rim structure, on the contrary, I intend that only such limitations be imposed as are indicated in the appended claims.

What I claim is:

1. An actuator for tool rims havin a plurality of joined parts comprising a rlgid member for gripping one rim member, a second rigid member for gripping another rim member at a point spaced from said first member, and means for exerting a continuous pull between said rigid members to cause them to grip the rim members and tending to join or disjoin the rim members.

'2. An actuator for two part jointed wheel rims, comprising a clamp for gripping one rim member, a swivel bolt connected thereto, a second clamp, cooperating with the swivel bolt, for gripping the other rim member at a point spaced from said first clamp and means for exerting a continuous pull between the clamps tending-to either join 01' disjoin the rim members.

3. An actuator for two part, bayonet joint connected wheel rims, comprising a clamp for grippin one rim member, a swivel bolt connected thereto, a second clamp cooperating with the swivel bolt, for gripping the other rim member at a point spaced from said first clam and means for exerting a continuous pul between the clamps tending to either joln or'disjoin the rim members.

4. An actuator for two part, bayonet joint connected wheel rims, comprising a clamp for grippin one rim member, a swivel bolt connected thereto, a second clamp codperating with the swivel bolt, for gripping the other rim member at a point spaced from said first clamp and a compression spring mounted on the bolt and exerting a continuous pull between the clamps tending to either join or disjoin the rim members.

An actuator for two part jointed wheel rims, comprising a clamp having a hooked projection for engaging one of the rim memers, a swivel bolt connected thereto, a. sec- 0nd clamp having a hooked projection for engaging the other rim member at a point spaced from said first clamp and a notch to receive the swivel bolt, and means for exerting a continuous pull between the clamps tending to either join or disjoin the rim members.

' 6. An actuator for two part jointed wheel rims, comprising a clamp hav ng a hooked projection for engaging one of the rim members, a swivel bolt connected thereto, a second clamp havin a hooked projection for engaging the ot er rim member at a point spaced from said first clam ALDEN L. MGMURTRY,

lVitnesses:

F. GRAVES Ennnsr MARSHALL.

and a notch to receive the swivel bolt, an a heli-' 

